Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '62c24e7b5691fa3560ed2bf6dcc08a3bf20ded94480f91d991211d849b5dace3' 
  AND token = 'l3QokfsRpy6/+0+6GDVyLVC7Ki4t/cocEtZH7JbD0sY=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "message": "Impossible WHERE noticed after reading const tables"
    }
  }
}